- AskScience AMA Series: We're journalists who used genomic sequencing data to reveal how a dangerous strain of salmonella spread through America's chicken industry and still makes people sick. We also made a tool to let people check where their chicken and turkey came from. Happy Thanksgiving, AUA!
- How do physicists predict new fundamental particles mathematically?
- Is a seismic survey of the sea bed harmful to marine life?
- Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology
- Monoclonal Antibodies and COVID vaccine?
- How much lava is there on earth?
- What exactly does the Strong Force affect?
- What does ''chain mobility'' mean and why does a lower chain mobility make a polymer harder to hydrolyze ?
- If you were to throw a baseball from the iss would it reach earth?
- Why am I getting the opposite color change for a complexometric titration using Eriochrome Black T?
- Is the naming scheme used for COVID-19 common in virology?
- Can you use zinc oxide in place of zinc powder for the "turn pennies to gold" experiment?
| Posted: 24 Nov 2021 04:01 AM PST We're ProPublica reporters Bernice Yeung, Michael Grabell and ProPublica data reporter Irena Hwang. Bernice and Michael have spent years reporting on the U.S. meatpacking industry, while Irena used her background in bioinformatics to track salmonella infantis, a dangerous strain that's sickened tens of thousands of people, including some who died, in the past few years. Other countries have all but eliminated salmonella in poultry, but in America, infantis has been allowed to spread and continues to make people sick. The USDA knows about it. The meat industry knows about it. But the public? Not so much. Most people know that cooking poultry kills salmonella, but many studies found that cooks routinely cross-contaminate their kitchen surfaces after handling raw meats, which means that bacteria like salmonella are still a risk. In addition to publishing a huge exposé on the outbreak, we also made a database that lets anyone look up where their chicken or turkey came from, as well as how often dangerous salmonella was found by USDA inspectors. We call it Chicken Checker. In spite of the name, Chicken Checker also lets you look up turkey. Happy Thanksgiving. Keep up w/ ProPublica on Twitter or via Email, and we'll see you all starting around 11 am ET (16 UT), AUA! (P.S. If you look up your chicken on Chicken Checker, be sure to fill out the information at the bottom of the page - it'll help us track supply chains and do more journalism that helps consumers). Username: /u/propublica_ [link] [comments] |
| How do physicists predict new fundamental particles mathematically? Posted: 24 Nov 2021 06:16 AM PST What does an "undiscovered particle" look like in the math, and how do you know it when you see it? [link] [comments] |
| Is a seismic survey of the sea bed harmful to marine life? Posted: 24 Nov 2021 06:27 AM PST Shell has contracted a company called Shearwater GeoServices to conduct a seismic survey for petrogas off one of the most biodiverse marine areas of South Africa. People are calling for us to boycott Shell service stations, protesting and sign petitions because of this. Here is a link to another post that goes into more detail link Is this going to be as harmful as people are making it out to be? Ps: not sure what flair to give this. [link] [comments] |
| Ask Anything Wednesday - Biology, Chemistry, Neuroscience, Medicine, Psychology Posted: 24 Nov 2021 07:00 AM PST Welcome to our weekly feature, Ask Anything Wednesday - this week we are focusing on Biology, Chemistry, Neuroscience, Medicine, Psychology Do you have a question within these topics you weren't sure was worth submitting? Is something a bit too speculative for a typical /r/AskScience post? No question is too big or small for AAW. In this thread you can ask any science-related question! Things like: "What would happen if...", "How will the future...", "If all the rules for 'X' were different...", "Why does my...". Asking Questions: Please post your question as a top-level response to this, and our team of panellists will be here to answer and discuss your questions. The other topic areas will appear in future Ask Anything Wednesdays, so if you have other questions not covered by this weeks theme please either hold on to it until those topics come around, or go and post over in our sister subreddit /r/AskScienceDiscussion , where every day is Ask Anything Wednesday! Off-theme questions in this post will be removed to try and keep the thread a manageable size for both our readers and panellists. Answering Questions: Please only answer a posted question if you are an expert in the field. The full guidelines for posting responses in AskScience can be found here. In short, this is a moderated subreddit, and responses which do not meet our quality guidelines will be removed. Remember, peer reviewed sources are always appreciated, and anecdotes are absolutely not appropriate. In general if your answer begins with 'I think', or 'I've heard', then it's not suitable for /r/AskScience. If you would like to become a member of the AskScience panel, please refer to the information provided here. Past AskAnythingWednesday posts can be found here. Ask away! [link] [comments] |
| Monoclonal Antibodies and COVID vaccine? Posted: 24 Nov 2021 12:29 AM PST Question for those of you that understand immunology. We know that the CDC says to wait 90 days between the monoclonal antibody infusion for COVID 19 and getting vaccinated (first dose). Can anyone give insight into why? What is the science behind needing to wait? Would it cause serious adverse/side effects or would the antibodies from the infusion and the antibodies from the vaccine go to war with each other per se? Not looking to get into a vaccinated vs unvaccinated discussion. Just curious about the science of it. [link] [comments] |
| How much lava is there on earth? Posted: 23 Nov 2021 10:03 PM PST My son's actual question (the relevance of which we may ignore for now) was if there was more water or more lava on earth. I have read estimates on the amount of water, but it seems to be an interesting, uncommon question how much lava there is on (in) our planet. (I guess this would be a question for Randall Munroe..) PS: Hope I got the right flair. Please tell me otherwise. [link] [comments] |
| What exactly does the Strong Force affect? Posted: 23 Nov 2021 05:05 PM PST I'm aware that protons and neutrons are made up of 3 quarks each. Each of them have a 'color' of the force that keeps the particle together. My understanding is that this balance is the strong force. However, there is also in physics a strong force that keeps all the protons and neutrons in the nucleus of an atom (other that gravity). I'm not finding any mention of color. Is it the same force? It seems weird that there would be additional strong force since affecting the protons and neutrons since they are internally color satisfied. [link] [comments] |
| Posted: 23 Nov 2021 01:34 PM PST I read that polymers like PET are hard to hydrolyze because of their high ratio of aromatic units, which reduces their chain mobility. Could anyone explain to me what chain mobility is exactly ? And why it has anything to do with hydrolysis of the polymer ? [link] [comments] |
| If you were to throw a baseball from the iss would it reach earth? Posted: 23 Nov 2021 08:36 PM PST Assume normal human arm strength. I'm not talking about if it would burn up upon reentry, but rather would the ball orbit at a lower altitude or would it have enough momentum to spiral all the way down [link] [comments] |
| Why am I getting the opposite color change for a complexometric titration using Eriochrome Black T? Posted: 23 Nov 2021 08:27 PM PST Hi all, I am trying to conduct a complexometric titration involving antacid, by trying to determine its magnesium concentration (which is in the form of Mg(OH)2 in my antacid) through EDTA. I've seen in a bunch of places online that the color change should go from red to blue when the indicator Eriochrome Black T is used, as a result of this equation: MgIn- + HEDTA3- <--> MgEDTA2- + HIn- Wine red Blue However when I add the indicator to my antacid, I get a moderate blue color, that gets darker as I titrate EDTA (0.25 mol) into it. I added drops of a pH 10 buffer solution to the analyte before titrating as well, as I think the titration needs to be at that pH to work. One reason I thought of is that the antacid I'm using has a lot of aluminum hydroxide in it, however I was under the assumption that EDTA does not typically form complexes with aluminum and that it shouldn't affect my titration. This is a report on the specific antacid I'm using by the way: https://www.medicines.org.uk/emc/product/5550/smpc — in my experiment I diluted it heavily, diluting around 156 ml to 1.25 liters. I tried using different amounts of the antacid, EDTA, pH 10 buffer solution, and indicator, and was not able to get the correct colors. I also read somewhere that heating it could help it? Though I tried that and did not see a difference. If there's anybody who could possibly help me with this, I would appreciate it greatly. Thank you so much [link] [comments] |
| Is the naming scheme used for COVID-19 common in virology? Posted: 23 Nov 2021 10:18 PM PST From an article I read. In COVID-19, 'CO' stands for 'corona,' 'VI' for 'virus,' and 'D' for disease. Formerly, this disease was referred to as "2019 novel coronavirus" or "2019-nCoV." [link] [comments] |
| Can you use zinc oxide in place of zinc powder for the "turn pennies to gold" experiment? Posted: 23 Nov 2021 11:48 AM PST |
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